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Compiler Option for implementing Boot Loader

 
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Compiler Option for implementing Boot Loader
PostPosted: Fri Jul 09, 2004 10:12 am     Reply with quote
Hi

I am trying to implement Boot Laoder in 16F819 using CCS Compiler
My Compiler Version is 3.186
I went through the archives about this topic

Lokks like advnaced versions of the compiler (3.20) have the directive " #build(reset = 0x xxxx )" to relocate the user code to the desired location

But I do not see this option inmy version of the compiler
Is there any way of implementing this in ver 3.186
Anybody has a similar experience?

Any relevant info would be of great help

Thanks & Best Regards,

Raghu
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Jul 09, 2004 11:09 am     Reply with quote
Quote:

Looks like advanced versions of the compiler (3.20) have the
directive " #build(reset = 0x xxxx )" to relocate the user code to
the desired location. But I do not see this option in my version of
the compiler. Is there any way of implementing this in ver 3.186 ?

Those directives have actually been in the compiler for over a year.
They were just undocumented. Do a search on this forum for these
keywords: build reset interrupt (Be sure to select "search for all terms")
You'll see lots of articles discussing how to use these directives.
They should work with your version.
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Fri Jul 09, 2004 11:11 am     Reply with quote
These pre-processor directives are existing for some time now. Too bad CCS didn't document them anywhere. I use the code below in v3.187 and it works great.

Code:
// Remap the interrupt vectors and reserve space for the bootloader
#build(reset=0x0200)
#build(interrupt=0x0208)
#org 0x0000,0x01ff
void bootloader() {
#asm
nop
#endasm
}
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Fri Jul 09, 2004 11:13 am     Reply with quote
Does anyone know how to remap the interrupts when using both normal and high priority interrupts?
Guest
PostPosted: Fri Jul 09, 2004 12:11 pm     Reply with quote
Thanks for all the replies

I will try it out

Thanks & Best regards,
Raghu
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